The invention discloses a control method and device for preventing overspeed of a motor of a hybrid electric vehicle, the hybrid electric vehicle and a medium. The control method for preventing the motor of the hybrid electric vehicle from overspeed comprises the steps that in the driving process of the hybrid electric vehicle, the first rotating speed, the current motor torque and the whole vehicle required torque of the motor in a motor driving system of the hybrid electric vehicle are obtained, and it is determined that the motor is currently in a driving state or a feeding state according to the first rotating speed and the current motor torque; when the motor is in a feed state currently, a second rotating speed of the motor is obtained, and when the second rotating speed is larger than a first rotating speed threshold value, the whole vehicle demand control mode is a torque mode, and the gear is in a gear shifting completion state, a motor controller is controlled to enter an active speed limiting mode; and according to the second rotating speed, the rotating speed ring demand torque of the motor controller in the active speed limiting mode is obtained, and according to the rotating speed ring demand torque and the whole vehicle demand torque, the current demand torque of the motor is determined. The driving safety and reliability of the whole hybrid electric vehicle are effectively improved.

    本发明公开了一种防止混动车电机超速的控制方法、装置、混动车及介质。该防止混动车电机超速的控制方法包括:在混动车行驶过程中,获取混动车电机驱动系统中电机的第一转速、当前电机扭矩以及整车需求扭矩,并根据第一转速和当前电机扭矩确定电机当前处于驱动状态或馈电状态;在电机当前处于馈电状态时,获取所述电机的第二转速,并在第二转速大于第一转速阈值,且整车需求控制模式为扭矩模式,且档位处于换挡完成状态,则控制电机控制器进入主动限速模式;根据第二转速获取电机控制器在主动限速模式下的转速环需求扭矩,并根据转速环需求扭矩和整车需求扭矩确定电机的当前需求扭矩。本发明有效提升混动车整车驾驶安全性、可靠性。


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    Title :

    Control method and device for preventing overspeed of motor of hybrid electric vehicle, hybrid electric vehicle and medium


    Additional title:

    防止混动车电机超速的控制方法、装置、混动车及介质


    Contributors:
    WANG LINTAO (author) / SUN LIPENG (author) / WANG YINGBO (author) / SUN MINGFENG (author) / LIU JINXIN (author)

    Publication date :

    2024-03-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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